import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import List from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'
// 导入全局样式表
import '../assets/css/global.css'

Vue.use(VueRouter)

const routes = [
  {
    // 路由重定向，自动跳转到login页面
    path:"/",
    redirect: '/login'
  },
  {
    path:'/login',
    component: Login,
  },
  {
    path:'/home',
    component: Home,
    redirect:'/welcome',
    children:[
      { path:'/welcome',component:Welcome },
      { path:'/users',component:Users },
      { path:'/rights',component:Rights },
      { path:'/roles',component:Roles },
      { path:'/categories',component:Cate },
      { path:'/params',component:Params },
      { path:'/goods',component:List},
      { path:'/goods/add',component:Add},
      { path:'/orders',component:Order},
      { path:'/reports',component:Report},
    ]
  }
]

const router = new VueRouter({
  routes
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 从哪个路径跳转来
  // next 一个函数，表示放行
  //    next() 放行 next('/login') 强制跳转
  if(to.path === '/login') return next()
  // 获取token
  const tokerStr = window.sessionStorage.getItem('token')
  if(!tokerStr) return next('/login') 
  next()
})

export default router
